Answer: The right answers are A) “let us sport us while we may” and C) "at once our time devour.”
Explanation: Just to elaborate a little on the answer, it can be added that the term carpe diem is originally a Latin expression that can be literally translated as "seize the day," and that has come to be interpreted as an appeal to take advantage of the present, due to the fleeing nature of time. "Let us sport us" can be translated as let us amuse ourselves and have fun, whereas "at one our time devour" is an exaggeration that emphasizes the desire of the speaker to seize the day to the fullest.